java–读取文件中的内容到–>基本数据类型及String

标签：throws读取printbspottredoputcloseado

将基本类型数据写入到文件中，接着读取出来

package com.machuang.io.others;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class DataStream {

public static void main(String[] args) throws IOException {
String path = \”F:/win10/test/data.txt\”;
writeBasicTypes(path);

// 与要读取的文件建立联系
DataInputStream dis = new DataInputStream(
new BufferedInputStream( new FileInputStream(path) )
);
// 读取操作
double recDou = dis.readDouble();
long recL = dis.readLong();
String recS = dis.readUTF();

System.out.println(\”recDou:\\t\” + recDou + \”\\n\”
+ \”recL:\\t\” + recL + \”\\n\”
+ \”recS:\\t\” + recS);

dis.close();

}

public static void writeBasicTypes(String desPath) throws IOException {
// 要写出的数据
double dataDou = 3.6;
long numL = 100L;
String dataStr = \”architecture\”;

// 关联写出的文件
DataOutputStream dos = new DataOutputStream(
new BufferedOutputStream(new FileOutputStream(desPath))
);
dos.writeDouble(dataDou);
dos.writeLong(numL);
dos.writeUTF(dataStr);

dos.flush();
dos.close();

}

}

运行结果如下

java–读取文件中的内容到–>基本数据类型及String

标签：throws读取printbspottredoputcloseado

原文地址：https://www.cnblogs.com/cappuccinom/p/8822961.html